@charset "UTF-8";
.top-nav{
    /* 设置弹性盒子 */
    display: flex;
    /* 设置水平对齐方式 */
    justify-content: space-between;
    /* 设置垂直对齐方式 */
    align-items: center;
    padding: 0 30px;
    height: 70px;
    width: 100%;
    border-bottom: 2px solid white;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 99999;
    box-sizing: border-box;
}
/* 顶部中间区域菜单样式设置 */
.top-nav .menu{
    line-height: 68px;
}
.top-nav .menu a{
    display: inline-block;
    margin: 0 15px;
    font-size: 14px;
    color: white;
    text-decoration: none;
}
.top-nav .menu a.active{
    border-bottom: 2px solid #1271ef;
}
/* 顶部右侧按钮区域样式设置 */
.top-nav .btns .login-btn{
    display: inline-block;
    margin-right: 10px;
    padding: 5px 20px;
    border: 1px solid #181818;
    border-radius: 30px;
    color: white;
    font-size: 12px;
    text-decoration: none;
}
.top-nav .btns .register-btn{
    display: inline-block;
    padding: 5px 20px;
    border-radius: 30px;
    border: 1px solid #ed510a;
    background-color: #ed510a;
    color: #fff;
    font-size: 12px;
    text-decoration: none;
}


.help {
    color: white;
     text-align: center;
    background-color: rgba(0, 0, 0, 0.9);
    padding: 20px;
    box-sizing: border-box;
    height: 290px;
}
.help h1{
    margin-top: 50px;
}
.help p{
    padding: 20px;
}
.one{
    color: black;
    padding: 30px;
}
.need{
    color: grey;
}


.main{
    
    
}

.main h3 {
    margin: 30px auto;
    position: relative;
    font-size: 20px;
    line-height: 3em;
    
}

.main h3::after {
    content: "";
    position: absolute;
    top: 50px;
    left: 0px;
    width: 20px;
    height: 3px;
    background-color: #1271ef;
}

.main h3 span {
    font-size: 14px;
    color: #999;
}

.main .list .item {
    width: 326px;
    height: 342px;
    padding: 10px;
    border: 1px solid #eee;
    box-sizing: border-box;
    margin-right: 20px;
    
}

.main img {
    width: 100%;
}

.main .item-title {
    line-height: 2.5em;
}

.main .item-desc {
    line-height: 1.5em;
    font-size: 14px;
    color: #999;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
    overflow: hidden;
}

.main .item-more {
    margin: 20px 0;
    font-size: 12px;
    color: #1271ef;
}


.partner h3 {
    margin: 30px auto;
    position: relative;
    font-size: 20px;
    line-height: 3em;
    
}




.partner h3::after {
    content: "";
    position: absolute;
    top: 50px;
    left: 0px;
    width: 40px;
    height: 3px;
    background-color: #1271ef;
}


.partner ul{
    

    
   background-color: #f8f8f8;
   display: flex;
   flex-wrap: wrap;
   justify-content: space-between;
}

.partner li{
    width: 380px;
    background-color: white;
    height: 200px;
    text-align: center;
    margin-bottom: 20px;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
    
}
.partner img{
    /* width: 357px; */
    /* height: 123px; */

}




















.footer{
    padding: 40px 0 30px;
    height: 400px;
    background-color: #f8f8f8;
}
.foot-left dl{
    margin-right: 80px;
}
.foot-left dt{
    margin-bottom: 30px;
    font-size: 18px;
    font-weight: 500;
}

.foot-left dd{
    line-height: 3em;
    font-size: 14px;
    color: #999;
}
.footer .foot-right{
    text-align: right;
}
.footer .foot-right .wechat{
    font-size: 18px;
    font-weight: 500;
}
.footer .foot-right .itsource{
    font-size: 14px;
    color: #999;
    line-height: 4em;
}
.footer .copy{
    margin-top: 40px;
}
.footer .copy img{
    margin-right: 15px;
    vertical-align: middle;
}
.footer .copy p{
    color: #999;
    font-size: 12px;
}
.footer .copy p a{
    color: #999;
    font-size: 12px;
}
.footer .copy span{
    color: #999;
    font-size: 12px;
}